On Dec. 7, two years after a domestic disturbance call took a tragic turn and claimed the lives of two Americus, Georgia police officers, the Marine Corps honored one of their own: Lance Cpl. Nicholas Smarr, who died while rendering first aid to another fatally wounded officer.

The failure of the U.S. Air Force to report a domestic violence conviction to civilian authorities "had drastic consequences" that led to the shooting deaths of 26 people and the wounding of 22 others at a Texas church in 2017, and it "should not have occurred," according to a new report released Friday from the Pentagon Inspector General.

LOS ANGELES — Before he opened fire at a Thousand Oaks bar, killing 12 people Wednesday night, authorities said, Ian David Long was known among former roommates and neighbors in Newbury Park as an ex-Marine who appeared to be wrestling with mental health problems.